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Finding the Fourth Proportional to 39,887.84, 55,046.79 and 22,891.82

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Solution

The fourth proportional to 39,887.84, 55,046.79 and 22,891.82 is: 31,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,887.84 : 55,046.79 = 22,891.82 : x
  2. Step 2: Convert to fraction form
    39,887.84/55,046.79 = 22,891.82/x
  3. Step 3: Cross multiply
    39,887.84x = 55,046.79 × 22,891.82
  4. Step 4: Simplify right side
    39,887.84x = 1,260,120,933.02
  5. Step 5: Solve for x
    x = 1,260,120,933.02/39,887.84
  6. Step 6: Final answer
    x = 31,591.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.